Toothbrush and the like



Sept. 4, 1934. T smo 1,972,691

TOOTHBRUSH AND THE LIKE Filed June 21, 1933 I INVENTQR Turazu Nishm ATTORNEY Patented Sept. 4, 1934 UNITED STATES PATENT OFFICE 1 Claim.

This invention relates to tooth brushes and the like and more particularly to tooth brushes made from bamboo and having the tufts of bristles secured in holes or recesses by means of anchoring clips.

One object of the present invention is to construct a satisfactory, economical and reliable tooth brush of bamboo with bristles that will not readily become loosened or displaced under rough usage.

Another object of this invention is to provide an improved metallic clip for use in anchoring or securing a tuft of bristles in a hole or recess in a wooden head or body of a tooth brush, nail brush, or other like brush.

A still further object of this invention is to provide an improved form of anchoring device having a pair of fingers adapted to close around and embrace the bristles at their doubled end to securely clamp them together, and having an additional pair of fingers of improved form adapted to engage the walls of the wooden recess or opening to prevent withdrawal of the clip.

With these objects in view the invention consists in the novel construction and arrangement hereinafter described, illustrated in the accompanying drawing, and particularly pointed out in the appended claim, it being understood that various changes in the form and proportion may be made without departing from the spirit of the invention or sacrificing any of the advantages thereof.

In the drawing: Fig. 1 is a perspective view of a tooth brush; Fig. 2 is a greatly enlarged view of an anchoring device with a bundle of bristles applied thereto and broken'away so as to show the complete form of the clip; Fig. 3 is a cross section on the line 3-3 Fig. 2; Fig. 4 is a view similar to Fig. 2 but showing the clip in position in a hole or recess in a brush head.

The tooth brush is made with a bamboo stem 5 and with the tufts of bristles 6 firmly anchored in rows of holes or recesses 7.

For anchoring the bristles 6 in the bamboo tooth brush, I provide each tuft of bristles with an anchoring device or clip 8 comprising a body part 9 with lower outwardly projecting members 10 having bevelled ends or points 11 and also comprising outwardly projecting parts 12 having parallel upwardly projecting parts 13 with bevelled or pointed ends 14, and the bevelled or pointed ends 11 and 14 are so constructed and arranged that, when the anchoring device or clip is forced into the hole or recess 7, the engagement of the bevelled ends 14 with the rounded extremity 15 of the hole '7 causes the parallel members 13 to bend towards each other thereby embracing and tightly gripping the bristles therebetween, and at the same time the bevelled ends 11 are in contact with the sides of the hole 7 and the parts 10 are bent downwardly as shown at Fig. 4 with theresult that the points 11 are pressed by the spring action of the parts 10 into the bamboo and prevent withdrawal of the anchoring device from the hole.

In forming the bunches of bristles, these are prepared and counted in any usual or well known manner and are mounted betweenthe parallel fingers 13 as shown at Fig. 3 and as the anchoring device or clip with the bristles therein is then forced into the hole 7 the bristles are tightly clinched by the clip and the clip. in turn is tightly anchored within the opening.

Although the drawing and above specification discloses the best modein which I have contemplated embodying my invention, I desire to be in no way limited to the exact details of such disclosure for in the further practical application of my invention, changes in the dimensions and detailed construction may be made as circumstances require or experience suggests without departing from the spirit of the invention within the scope of the appended claim.

What I claim is:' v

A bamboo tooth brushcomprising a handle portion and a tuft supporting portion, said tuft supporting portion having a plurality of bores therein the inner ends of which are rounded, bristles bent upon themselves for insertion in said bores, and metal clips for securing said bristles securely in said bores, each metal clip comprising a substantially U-shaped portion for receiving bristles at the point where they are bent upon themselves, and an anchoring portion positioned beneath said U-shaped portion and connected thereto by a narrow integral connecting piece, the normal width of said U-shaped portion being substantially equal to the width of a bore at the opening thereof, the ends of the uprightarms of said U- shaped portion being tapered inwardly whereby when a clip' is inserted into a bore said ends will strike the rounded inner end of the bore to bend said upright arms inwardly to clamp the bristles therebetween, said anchoring portion having downwardly slanting prong portions and having a normal length slightly greater than the width of a bore whereby the prongs of the clip when the clip is inserted will bite into the walls of the bore to anchor the clip therein and prevent its withdrawal.

TORAZO NISl-IIO. 

